We ship worldwide — Singapore, Australia, Malaysia, Indonesia, Philippines, India, Middle East & more

3G Electric
⌕
RFQ CartGet a QuoteSign inSign up
RIB Current Sensor Relay: Surface Mounted - Surface-Mounted Relays
RIBSurface-Mounted Relays

RIB Current Sensor Relay: Surface Mounted

The RIB Current Sensor Relay: Surface Mounted (SKU 21AJ42, MPN RIBXKTF) is a surface-mounted relay with a fixed trip point of 0.25 A. It monitors undercurrent parameters and features a switch adjustment method with a…

SKU 3G-OTH-35290

Brand
RIB
Item
Current Sensor Relay: Surface Mounted
Category
Surface-Mounted Relays
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Technical Specifications

RIB
Brand
RIB
Trip Point
0.25 A
Mounting Style
Surface
Trip Point Type
Fixed
Status Indicator
No Indicator
Adjustment Method
Switch
Monitored Parameters
Undercurrent
Electrical Connection
Terminal Strip
Manufacturer Part Number
RIBXKTF
View Full Spec Sheet

Technical Documents

No technical documents available for this product.
Request documentation →
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

RIB Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The RIB Current Sensor Relay: Surface Mounted (SKU 21AJ42, MPN RIBXKTF) is a surface-mounted relay with a fixed trip point of 0.25 A. It monitors undercurrent parameters and features a switch adjustment method with a terminal strip electrical connection, operating at 30V AC/DC with a 0.4 A current rating. This relay has no status indicator.

Used in

Common applications for RIB
HVAC control — RIB enclosed pre-wired relays (e.g., RIB2421C) for switching fan coils and damper actuators
Lighting control — RIB wireless relays (RIBW208B-EN3) for remote switching of high-bay or parking lot lighting
Pump monitoring — RIB adjustable current sensing relay (RIBXKTA) for detecting dry-run conditions in water pumps
Process automation — RIB 3PST-NO relays (RIB013P) for interlocking conveyor systems or motor starters
Building management — RIB wireless transmitter/receiver pairs for retrofitting legacy control panels without new wiring

RIB Products

3G Electric supplies RIB surface-mounted relays. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion →Pumps & Compressors →Spare Parts →All Products →

Similar products

Matched by specification & description
RIB Wireless Relay and Transmitter: 20 A Current Rating, 277V AC, Wireless 902 MHz (MPN RIBW277B-EN3). Key specifications — Communication Method: Wireless 902 MHz; Nipple Size: 0.50 in NPT; Brand: RIB.
RIB
RIB Wireless Relay and Transmitter: 20 A Current Rating, 277V AC, Wireless 902 MHz (MPN RIBW277B-EN3). Key specifications — Communication Method: Wireless 902 MHz; Nipple Size: 0.50 in NPT; Brand: RIB.
RIB Enclosed Pre-Wired Relay: 10 A Rating, 10-30V AC/DC/120V AC, SPDT, 0.50 in NPT (MPN RIBU1C-N4). Key specifications — Nipple Size: 0.50 in NPT; Coil Voltage: 10-30V AC/DC/120V AC; Brand: RIB.
RIB
RIB Enclosed Pre-Wired Relay: 10 A Rating, 10-30V AC/DC/120V AC, SPDT, 0.50 in NPT (MPN RIBU1C-N4). Key specifications — Nipple Size: 0.50 in NPT; Coil Voltage: 10-30V AC/DC/120V AC; Brand: RIB.
RIB Enclosed Pre-Wired Relay: 10 A Rating, 10-30V AC/DC/120V AC, SPST-NO, 0.50 in NPT (MPN RIBU1S). Key specifications — Nipple Size: 0.50 in NPT; Coil Voltage: 10-30V AC/DC/120V AC; Brand: RIB.
RIB
RIB Enclosed Pre-Wired Relay: 10 A Rating, 10-30V AC/DC/120V AC, SPST-NO, 0.50 in NPT (MPN RIBU1S). Key specifications — Nipple Size: 0.50 in NPT; Coil Voltage: 10-30V AC/DC/120V AC; Brand: RIB.
RIB Enclosed Pre-Wired Relay: 10 A Rating, 10-30V AC/DC/120V AC, DPDT, 0.75 in NPT (MPN RIBU2C). Key specifications — Nipple Size: 0.75 in NPT; Coil Voltage: 10-30V AC/DC/120V AC; Brand: RIB.
RIB
RIB Enclosed Pre-Wired Relay: 10 A Rating, 10-30V AC/DC/120V AC, DPDT, 0.75 in NPT (MPN RIBU2C). Key specifications — Nipple Size: 0.75 in NPT; Coil Voltage: 10-30V AC/DC/120V AC; Brand: RIB.
RIB Enclosed Pre-Wired Relay: 10 A Rating, 10-30V AC/DC, 3PST-NO/SPDT, 0.50 in NPT (MPN RIBL4C). Key specifications — Nipple Size: 0.50 in NPT; Coil Voltage: 10-30V AC/DC; Brand: RIB.
RIB
RIB Enclosed Pre-Wired Relay: 10 A Rating, 10-30V AC/DC, 3PST-NO/SPDT, 0.50 in NPT (MPN RIBL4C). Key specifications — Nipple Size: 0.50 in NPT; Coil Voltage: 10-30V AC/DC; Brand: RIB.

More from RIB

View all RIB parts →
RIB Current Sensor Relay: Surface Mounted, 1 A Current Rating, 120V AC, Overcurrent/Undercurrent (MPN RIBXGHF). Key specifications — Adjustment Method: Switch; Electrical Connection: Wire Leads; Monitored Parameters: Undercurrent; Mounting Style: Surface; Status Indicator: No Indicator; Trip Point: 0.50 A; Trip Point Type: Fixed; Brand: RIB.
RIB
RIB Current Sensor Relay: Surface Mounted, 1 A Current Rating, 120V AC, Overcurrent/Undercurrent (MPN RIBXGHF). Key specifications — Adjustment Method: Switch; Electrical Connection: Wire Leads; Monitored Parameters: Undercurrent; Mounting Style: Surface; Status Indicator: No Indicator; Trip Point: 0.50 A; Trip Point Type: Fixed; Brand: RIB.
RIB Adjustable Current Sensing Relay: Surface Mounted, 0.4 A Current Rating, 30V AC/DC, Pin (MPN RIBXGTA). Key specifications — Adjustment Method: Switch; Electrical Connection: Terminal Strip; Monitored Parameters: Undercurrent; Mounting Style: Surface; Status Indicator: No Indicator; Trip Point: 0.75 to 150 A; Trip Point Type: Adjustable; Brand: RIB.
RIB
RIB Adjustable Current Sensing Relay: Surface Mounted, 0.4 A Current Rating, 30V AC/DC, Pin (MPN RIBXGTA). Key specifications — Adjustment Method: Switch; Electrical Connection: Terminal Strip; Monitored Parameters: Undercurrent; Mounting Style: Surface; Status Indicator: No Indicator; Trip Point: 0.75 to 150 A; Trip Point Type: Adjustable; Brand: RIB.
RIB Adjustable Current Sensing Relay: Surface Mounted, 0.8 A Current Rating, 30V AC/DC, Pin (MPN RIBXKTA). Key specifications — Adjustment Method: Switch; Electrical Connection: Terminal Strip; Monitored Parameters: Undercurrent; Mounting Style: Surface; Status Indicator: No Indicator; Trip Point: 0.05 to 10 A; Trip Point Type: Adjustable; Brand: RIB.
RIB
RIB Adjustable Current Sensing Relay: Surface Mounted, 0.8 A Current Rating, 30V AC/DC, Pin (MPN RIBXKTA). Key specifications — Adjustment Method: Switch; Electrical Connection: Terminal Strip; Monitored Parameters: Undercurrent; Mounting Style: Surface; Status Indicator: No Indicator; Trip Point: 0.05 to 10 A; Trip Point Type: Adjustable; Brand: RIB.
RIB Current Sensor Relay: Surface Mounted, 1 A Current Rating, 120V AC, Overcurrent/Undercurrent (MPN RIBXGHTF). Key specifications — Adjustment Method: Switch; Electrical Connection: Terminal Strip; Monitored Parameters: Undercurrent; Mounting Style: Surface; Status Indicator: No Indicator; Trip Point: 0.50 A; Trip Point Type: Fixed; Brand: RIB.
RIB
RIB Current Sensor Relay: Surface Mounted, 1 A Current Rating, 120V AC, Overcurrent/Undercurrent (MPN RIBXGHTF). Key specifications — Adjustment Method: Switch; Electrical Connection: Terminal Strip; Monitored Parameters: Undercurrent; Mounting Style: Surface; Status Indicator: No Indicator; Trip Point: 0.50 A; Trip Point Type: Fixed; Brand: RIB.
RIB Current Sensor Relay: Surface Mounted, 0.4 A Current Rating, 30V AC/DC, Overcurrent/Undercurrent (MPN RIBXKF). Key specifications — Adjustment Method: Switch; Electrical Connection: Wire Leads; Monitored Parameters: Undercurrent; Mounting Style: Surface; Status Indicator: No Indicator; Trip Point: 0.25 A; Trip Point Type: Fixed; Brand: RIB.
RIB
RIB Current Sensor Relay: Surface Mounted, 0.4 A Current Rating, 30V AC/DC, Overcurrent/Undercurrent (MPN RIBXKF). Key specifications — Adjustment Method: Switch; Electrical Connection: Wire Leads; Monitored Parameters: Undercurrent; Mounting Style: Surface; Status Indicator: No Indicator; Trip Point: 0.25 A; Trip Point Type: Fixed; Brand: RIB.
RIB Current Sensor Relay: Surface Mounted, 0.4 A Current Rating, 30V AC/DC, Overcurrent/Undercurrent (MPN RIBXGF). Key specifications — Adjustment Method: Switch; Electrical Connection: Wire Leads; Monitored Parameters: Undercurrent; Mounting Style: Surface; Status Indicator: No Indicator; Trip Point: 0.35 A; Trip Point Type: Fixed; Brand: RIB.
RIB
RIB Current Sensor Relay: Surface Mounted, 0.4 A Current Rating, 30V AC/DC, Overcurrent/Undercurrent (MPN RIBXGF). Key specifications — Adjustment Method: Switch; Electrical Connection: Wire Leads; Monitored Parameters: Undercurrent; Mounting Style: Surface; Status Indicator: No Indicator; Trip Point: 0.35 A; Trip Point Type: Fixed; Brand: RIB.
RIB Current Sensor Relay: Surface Mounted, 0.4 A Current Rating, 30V AC/DC, Overcurrent/Undercurrent (MPN RIBXGTF). Key specifications — Adjustment Method: Switch; Electrical Connection: Terminal Strip; Monitored Parameters: Undercurrent; Mounting Style: Surface; Status Indicator: No Indicator; Trip Point: 0.35 A; Trip Point Type: Fixed; Brand: RIB.
RIB
RIB Current Sensor Relay: Surface Mounted, 0.4 A Current Rating, 30V AC/DC, Overcurrent/Undercurrent (MPN RIBXGTF). Key specifications — Adjustment Method: Switch; Electrical Connection: Terminal Strip; Monitored Parameters: Undercurrent; Mounting Style: Surface; Status Indicator: No Indicator; Trip Point: 0.35 A; Trip Point Type: Fixed; Brand: RIB.